Effects of bacterial inoculants and sources of phosphorus on yield and phosphorus uptake of wheat |
| |
| Authors: | M F Ahmed I R Kennedy |
| |
| Institution: | SUNFix Centre for Nitrogen Fixation, Faculty of Agriculture and Environment, University of Sydney, Eveleigh, Australia |
| |
| Abstract: | Phosphorus (P) mobilizing bacteria play an important role in the availability of soil and fertilizer P for all crops including wheat. Two greenhouse experiments were conducted to evaluate the effects of six P mobilizing bacterial strains and three P sources tricalcium phosphate {Ca3(PO4)2], calcium hydrogen phosphate CaHPO4.2H2O] and rock phosphate} on yield and P uptake of wheat. All the bacterial inoculants increased grain yield significantly over control in one greenhouse experiment while only three strains produced significantly higher grain yield over control in a second experiment. Difference among P sources were not significant in acquiring grain yield in experiment 1 while Ca3(PO4)2 and CaHPO4.2H2O produced significantly higher grain yield over rock phosphate in experiment 2. The differential pattern in results in two experiments might be due to difference in growth conditions. More greenhouse studies as well field experiments are recommended to confirm the beneficial effects of these P mobilizing bacterial strains on wheat. |
| |
| Keywords: | phosphorus mobilization bacterial inoculants and wheat |
|
|
